Re: Bug#815998: golang: add mips64/mips64el support

[Mathieu Malaterre <malat@debian.org>]

On Tue, Aug 30, 2016 at 8:31 AM, Mathieu Malaterre <malat@debian.org> wrote:
> On Sun, Aug 28, 2016 at 5:12 PM, Tianon Gravi <tianon@debian.org> wrote:
>> Given that upstream officially supports bootstrapping via gccgo, I'd
>> rather keep the discussion of "fix cross build" to a separate issue if
>> we can.  I am interested in updating the packaging to properly support
>> cross-building, but consider it a secondary concern to adding more
>> architectures.
>>
>> That being said, I attempted to build src:golang-1.7 on mips64el and
>> ran into the following build failure:
>>
>> (sid_mips64el-dchroot)tianon@eller:~/golang-1.7-1.7$ dpkg-buildpackage -uc -us
>> dpkg-buildpackage: info: source package golang-1.7
>> dpkg-buildpackage: info: source version 1.7-3
>> dpkg-buildpackage: info: source distribution unstable
>> dpkg-buildpackage: info: source changed by Tianon Gravi <tianon@debian.org>
>> dpkg-buildpackage: info: host architecture mips64el
>>  dpkg-source --before-build golang-1.7-1.7
>>  fakeroot debian/rules clean
> [...]
>
>> export GOROOT_BOOTSTRAP=$(env -i go env GOROOT) \
>> && cd src \
>> && /home/tianon/golang-1.7-1.7/debian/helpers/goenv.sh \
>
> Well you need to update that file I guess:
>
> $ head -20 debian/helpers/goenv.sh
> #!/bin/sh
> set -e
>
> __goos__deb_arch_os() {
> case "$1" in
> kfreebsd) echo freebsd ;;
> linux) echo "$1" ;;
> *) echo >&2 "error: unrecongized DEB_*_ARCH_OS: $1"; exit 1 ;;
> esac
> }
>
> __goarch__deb_arch_cpu() {
> case "$1" in
> amd64|arm|arm64|ppc64|s390x) echo "$1" ;;
> i386) echo 386 ;;
> ppc64el) echo ppc64le ;;
> mips64el) echo mips64le ;;
> *) echo >&2 "error: unrecongized DEB_*_ARCH_CPU: $1"; exit 1 ;;
> esac
> }
>
> Good luck!

I guess I was not clear, I meant specifically this line:

export GO386=387

There should a sentinel around this.
2cts